Method and apparatus for cleaning laundry

Patent metadata

Field	Value
Publication number	US-12071718-B2
Application number	US-202217752364-A
Country	US
Kind code	B2
Filing date	May 24, 2022
Priority date	Sep 14, 2018
Publication date	Aug 27, 2024
Grant date	Aug 27, 2024

Abstract

A laundry washing machine having: a casing; a washing tub in the casing; a rotatable drum mounted within the washing tub; a door to provide access to the drum; a receptacle having a volume configured to receive a unit dose package comprising a water soluble pouch containing a dose of cleaning product; a tub supply pipe connecting the receptacle to the washing tub; one or more protrusions movably mounted to the casing to move between a first position in which the one or more protrusions are not located within the volume configured to receive the unit dose package, and a second position in which the one or more protrusions are located within the volume configured to receive the unit dose package; and a motor configured to move the one or more protrusions from the first position to the second position. Methods for operating a laundry washing machine are also provided.

First claim

The invention claimed is:

1. A laundry washing machine comprising:
a casing;
a washing tub located within the casing;
a drum mounted within the washing tub and configured to rotate relative to the casing;
a door attached to the casing and being openable to provide access to the drum;
an additive loading and supply system configured to receive a unit dose package;
a tub supply pipe fluidly connecting the additive loading and supply system to the washing tub;
a UDP breaking mechanism positioned within the tub supply pipe and configured to receive the unit dose package from the additive loading and supply system, the UDP breaking mechanism including one or more protrusions movably mounted to the casing to move between a first position in which the one or more protrusions are not located within the tub supply pipe, and a second position in which the one or more protrusions are located within the tub supply pipe; and
a motor configured to move the one or more protrusions from the first position to the second position.

2. The laundry washing machine of claim 1 , further comprising a control unit configured to operate the washing machine, where in the control unit is configured to operate the motor.

3. The laundry washing machine of claim 2 , wherein:
the laundry washing machine comprises a water supply system configured to dispense water to the additive loading and supply system; and
the control unit is configured to activate the water supply system to dispense water to the additive loading and supply system to convey the unit dose package down the tub supply pipe, and, subsequently, operate the motor to move the one or more protrusions from the first position to the second position.

4. The laundry washing machine of claim 1 , wherein the motor comprises a solenoid, a rotating electric motor, a pneumatic piston, or a hydraulic piston.

5. The laundry washing machine of claim 1 , wherein the one or more protrusions comprises one or more blades and/or pins.

6. The laundry washing machine of claim 1 , wherein:
the laundry washing machine further comprises a drawer pocket configured to receive a drawer and the unit dose package; and
the tub supply pipe comprises:
a first supply pipe portion fluidly connected between the drawer pocket and the additive loading and supply system, and
a second supply pipe portion fluidly connected between the additive loading and supply system and the washing tub.

7. The laundry washing machine of claim 6 , wherein the first supply pipe portion is dimensioned to allow the unit dose package to pass from the drawer pocket to the additive loading and supply system.

8. The laundry washing machine of claim 6 , wherein the additive loading and supply system is defined by:
the tub supply pipe; and
a retainer extending into the tub supply pipe.

9. The laundry washing machine of claim 8 , wherein the retainer comprises a perforated plate, a wire mesh, or one or more rods or ribs.

10. The laundry washing machine of claim 1 , wherein the tub supply pipe comprises:
a first supply pipe portion positioned upstream of the UDP breaking mechanism, the first supply pipe portion configured to receive unit dose package, and
a second supply pipe portion positioned downstream of the UDP breaking mechanism.

11. The laundry washing machine of claim 10 , wherein:
the first supply pipe portion is dimensioned to allow the unit dose package to be conveyed from the additive loading and supply system to the UDP breaking mechanism.

12. The laundry washing machine of claim 1 , wherein:
the additive loading and supply system includes a retainer extending within the tub supply pipe and configured to receive the unit dose package.

13. The laundry washing machine of claim 12 , wherein:
the retainer comprises a perforated plate, a wire mesh, or one or more rods or ribs.

14. A laundry washing machine comprising:
a casing;
a washing tub located within the casing;
a drum mounted within the washing tub and configured to rotate relative to the casing;
a door attached to the casing and being openable to provide access to the drum;
an additive loading and supply system configured to receive a unit dose package;
a first tub supply pipe fluidly connected to the additive loading and supply system, the first tub supply pipe configured to receive the unit dose package from the additive loading and supply system;
a UDP breaking mechanism positioned within the first tub supply pipe and configured to receive the unit dose package from the additive loading and supply system via the first tub supply pipe, the UDP breaking mechanism including one or more protrusions movably mounted to the casing to move between a first position in which the one or more protrusions are not located within the first tub supply pipe, and a second position in which the one or more protrusions are located within the first tub supply pipe;
a second tub supply pipe fluidly connecting the additive loading and supply system to the washing tub; and
a motor configured to move the one or more protrusions from the first position to the second position.

15. The laundry washing machine of claim 14 , wherein:
the UDP breaking mechanism includes a retainer positioned within the first tub supply pipe and configured to receive the unit dose package.

16. The laundry washing machine of claim 15 , wherein the retainer comprises a perforated plate, a wire mesh, or one or more rods or ribs.

17. The laundry washing machine of claim 15 , wherein the retainer is movable within the first tub supply pipe.

18. The laundry washing machine of claim 14 , wherein the first tub supply pipe comprises an enlarged portion, and wherein the UDP breaking mechanism is positioned within the enlarged portion.

Assignees

• Electrolux Appliances AB

Inventors

• White Allison
• Li Yihong
• Madalena Oscar

Classifications

• D06F21/02

  about a horizontal axis · CPC title

• D06F23/02

  and rotating or oscillating about a horizontal axis · CPC title

• D06F39/022

  in a liquid state (D06F39/024 takes precedence) · CPC title

• D06F39/08

  Liquid supply or discharge arrangements (supply of soap or other washing agents D06F39/02) · CPC title

• D06F39/10

  Filtering arrangements · CPC title